body,
b,
p,
ul,
li,
span,
div,
a {
    margin: 0;
    padding: 0;
}

a:hover {
    text-decoration: none;
}

.footer {
    position: relative;
    bottom: 0px;
    width: 100%;
}

.head {
    position: relative;
    top: 0px;
    width: 100%;
}

.classification_neir {
    width: 1200px;
    margin: 0 auto;
    display: flex;
}

.classification_left {
    width: 310px;
}

.classification_left .title {
    width: 60px;
    height: 40px;
    border-bottom: 2px solid #000;
    margin-bottom: 20px;
    margin-top: 10px;
}

.classification_left .title h3 {
    line-height: 40px;
}

.classification_right {
    width: 1000px;
    padding-left: 70px;
    height: 740px;
    overflow: auto;
    margin: 70px 0;
}

.classification_right .pinpai {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 25px 5px;
    border: 1px solid #ccc;
    width: 145px;
    height: 145px;
    justify-content: space-between;
    font-size: 18px;
    border-radius: 5px;
    box-shadow: 3px 3px 20px #888888;
    cursor: pointer;
    float: left;
    margin: 0 24px 40px 0;
}

.category li {
    margin-bottom: 10px;
}

.category .select {
    color: #e83f44;
}